Clear charges if scharge is under 0

app/models/validations/shared_validations.rb

@@ -122,7 +122,7 @@ private
     if min && max
       record.errors.add question.id.to_sym, :outside_the_range, message: I18n.t("validations.numeric.within_range", field:, min:, max:)
     elsif min
-      record.errors.add question.id.to_sym, I18n.t("validations.numeric.above_min", field:, min:)
+      record.errors.add question.id.to_sym, :under_min, message: I18n.t("validations.numeric.above_min", field:, min:)
     end
   end
 end

app/services/imports/lettings_logs_import_service.rb

@@ -356,6 +356,16 @@ module Imports
         attributes.delete("scharge")
         attributes.delete("pscharge")
         attributes.delete("supcharg")
+        attributes.delete("tcharge")
+        save_lettings_log(attributes, previous_status)
+      elsif lettings_log.errors.of_kind?(:scharge, :under_min)
+        @logger.warn("Log #{lettings_log.old_id}: Removing charges, because service charge is under 0/")
+        @logs_overridden << lettings_log.old_id
+        attributes.delete("brent")
+        attributes.delete("scharge")
+        attributes.delete("pscharge")
+        attributes.delete("supcharg")
+        attributes.delete("tcharge")
         save_lettings_log(attributes, previous_status)
       else
         @logger.error("Log #{lettings_log.old_id}: Failed to import")

spec/services/imports/lettings_logs_import_service_spec.rb

@@ -517,6 +517,34 @@ RSpec.describe Imports::LettingsLogsImportService do
         end
       end
 
+      context "and scharge is under 0" do
+        let(:lettings_log_id) { "0b4a68df-30cc-474a-93c0-a56ce8fdad3b" }
+
+        before do
+          lettings_log_xml.at_xpath("//xmlns:Q18aii").content = "-1"
+        end
+
+        it "intercepts the relevant validation error" do
+          expect(logger).to receive(:warn).with(/Removing charges, because service charge is under 0/)
+          expect { lettings_log_service.send(:create_log, lettings_log_xml) }
+            .not_to raise_error
+        end
+
+        it "clears out the referral answer" do
+          allow(logger).to receive(:warn)
+
+          lettings_log_service.send(:create_log, lettings_log_xml)
+          lettings_log = LettingsLog.find_by(old_id: lettings_log_id)
+
+          expect(lettings_log).not_to be_nil
+          expect(lettings_log.brent).to be_nil
+          expect(lettings_log.scharge).to be_nil
+          expect(lettings_log.pscharge).to be_nil
+          expect(lettings_log.supcharg).to be_nil
+          expect(lettings_log.tcharge).to be_nil
+        end
+      end
+
       context "and the net income soft validation is triggered (net_income_value_check)" do
         before do
           lettings_log_xml.at_xpath("//xmlns:Q8a").content = "1 Weekly"